1998–99 Florida A&M Rattlers basketball team

The 1998–99 Florida A&M Rattlers men's basketball team represented Florida A&M University during the 1998–99 NCAA Division I men's basketball season. The Rattlers, led by third-year head coach Mickey Clayton, played their home games at the Teaching Gym as members of the Mid-Eastern Athletic Conference. They finished the season 12–19, 8–11 in MEAC play to finish in 8th place in the conference regular season standings. They broke through to win four games to capture the MEAC tournament and secure the conferences automatic bid to the NCAA Tournament – the first appearance in school history. Playing as No. 16 seed in the East region, The Rattlers were defeated by No. 1 overall seed and eventual National runner-up Duke, 99–58.

Schedule and results
!colspan=9 style=| Non-conference regular season

!colspan=9 style=| MEAC regular season

!colspan=9 style=| MEAC tournament

!colspan=9 style=| NCAA tournament